The area, which includes parts of Chicago, is considered such a safe Democratic seat that no other Republicans chose to run.

Mr Jones ran for the same seat in 2016 but was removed from the ballot after it was found that none of his signatures of registered voters were valid.

The 70-year-old former insurance agent has run for office in the Chicago and Milwaukee areas without success since the 1970s.

He is an outspoken anti-Semite and white supremacist who openly celebrates the birthday of Adolf Hitler.

At a neo-Nazi retreat in 2017, Mr Jones was filmed deriding Donald Trump for having "surrounded himself with hordes of Jews", including the president's son-in-law Jared Kushner.

One of his most outrageous beliefs is his insistence that the Holocaust was exaggerated or fabricated. He told the Chicago Sun-Times that he believes coverage of the genocide to be an "international extortion racket" designed to give Jewish people special privileges.

Mr Jones' congressional candidate website includes a section titled "Holocaust?", in which he calls the murder of 6 million Jews and other minorities the "biggest blackest lie in history".